1. A machine which converts mechanical energy into electrical energy.

In its most common form, a large number of conductors are mounted on an armature which is rotated in a magnetic field produced by field coils.

2. A vacuum-tube oscillator or any other non-rotating device that generates an alternating voltage at a desired frequency when energized with direct-current power or low-frequency alternating-current power.
3. A circuit that generates a desired repetitive or non-repetitive waveform; such as, a pulse generator.

1. A device; such as, a klystron, in which the velocity of an electron beam is kept at a constant level in order to produce exceedingly high radio frequencies.
2. Velocity-modulated generator, such as a klystron tube (type of vacuum tube used as an amplifier), used to generate extremely high radio frequencies.

A klystron is an evacuated electron-beam tube in which an initial velocity modulation imparted to electrons in the beam results subsequently in density modulation of the beam. A klystron is used either as an amplifier in the microwave region or as an oscillator.

1. A tool which transforms direct current into a radio frequency by passing it through an electron tube in an oscillator circuit.
2. A generator in which direct-current (DC) energy is converted to radio-frequency (RF) energy by an electron tube in an oscillator circuit.

A high-powered oscillator which generates RF (radio frequency) energy for electronic heating.

1. An instrument which uses an electrostatic field in a vacuum to greatly increase the velocity of charged particles.
2. An electrical device that uses an electrostatic field to accelerate charged particles to high velocities in a vacuum.
3. Any machine that produces electric charges by friction or, more commonly, electrostatic induction.
4. A high-voltage generator in which electric charges are generated by friction or induction, then transferred mechanically to an insulated electrode to build up a voltage which may be as high as nine mega volts.
5. An apparatus for producing up to several million volts of electrostatic energy by successive accumulation of small static charges on an insulated high-voltage metal collector.

In radar countermeasures, a device that produces multiple false targets on enemy radar.

The total of all interconnected strings of a photovoltaic power supply system.

A two-terminal circuit element in which the terminal voltage is independent of the current through the element or component.